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Impurities and reference standards

N-Hydroxythalidomide

Also known as 1H-Isoindole-1,3(2H)-dione, 2-(1-hydroxy-2,6-dioxo-3-piperidinyl)-, 1'-hydroxy thalidomide, Thalidomide Impurity 3

CAS 126663-38-5Formula C13H10N2O5Molar mass 274.23 g/mol
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N-Hydroxythalidomide chemical structure, C13H10N2O5, CAS 126663-38-5
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
126663-38-5
Formula
C13H10N2O5
Molar mass
274.23 g/mol
HS code
292800
Category
Impurities and reference standards

What is N-Hydroxythalidomide?

Plain description, key identifiers and synonyms

N-Hydroxythalidomide is a chemical substance with the molecular formula C13H10N2O5 and a molar mass of 274.23 g/mol. Its CAS registry number is 126663-38-5. The IUPAC name is 2-(1-hydroxy-2,6-dioxopiperidin-3-yl)isoindole-1,3-dione.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-(1-hydroxy-2,6-dioxopiperidin-3-yl)isoindole-1,3-dione
CAS number
126663-38-5 CAS number cross-checked
Molecular formula
C13H10N2O5
UNII
S99D86TD4B
InChIKey
ATCLIPYVSYRXGS-UHFFFAOYSA-N
InChI
InChI=1S/C13H10N2O5/c16-10-6-5-9(13(19)15(10)20)14-11(17)7-3-1-2-4-8(7)12(14)18/h1-4,9,20H,5-6H2
SMILES (canonical and isomeric)
C1CC(=O)N(C(=O)C1N2C(=O)C3=CC=CC=C3C2=O)O

Synonyms

  • 1H-Isoindole-1,3(2H)-dione, 2-(1-hydroxy-2,6-dioxo-3-piperidinyl)-
  • 1'-hydroxy thalidomide
  • Thalidomide Impurity 3
  • 1'-Hydroxythalidomide
  • 1'-Hydroxy thalidomide, (+/-)-
  • 2-(1-hydroxy-2,6-dioxopiperidin-3-yl)-1H-isoindole-1,3(2H)-dione

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
274.23 g/molcalc.
Exact mass
274.059 Dacalc.
LogP (octanol/water)
0.19calc.
Topological polar surface area
94.99 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
1calc.
Heavy atoms
20calc.
Rings
3calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.23calc.
Formal charge
0calc.
Stereocentres
1calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, O=C1CCC(N2C(=O)c3ccccc3C2=O)C(=O)N1

O=C1CCC(N2C(=O)c3ccccc3C2=O)C(=O)N1

3 rings, 19 atoms, the Thalidomide ring system.

1,721 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

N-Hydroxythalidomide suppliers

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N-Hydroxythalidomide price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code N-Hydroxythalidomide is traded under.

HS 2928.00Indicative HS code

Organic derivatives of hydrazine or of hydroxylamine

World exports in 2024
$1.38B
−9.0% vs 2023, imports $1.52B
2019 to 2024
Top exporters
  1. Switzerland * partner reported44.0%
  2. China18.4%
  3. Italy9.4%
Top importers
  1. Brazil21.8%
  2. United States12.8%
  3. Italy10.8%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for N-Hydroxythalidomide is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about N-Hydroxythalidomide, based on the data on this page

What is N-Hydroxythalidomide?

N-Hydroxythalidomide is a chemical substance with the molecular formula C13H10N2O5 and a molar mass of 274.23 g/mol. Its CAS registry number is 126663-38-5. The IUPAC name is 2-(1-hydroxy-2,6-dioxopiperidin-3-yl)isoindole-1,3-dione.

What is the CAS number of N-Hydroxythalidomide?

The CAS registry number of N-Hydroxythalidomide is 126663-38-5.

What is the molecular formula and weight of N-Hydroxythalidomide?

The molecular formula of N-Hydroxythalidomide is C13H10N2O5 and its molar mass is 274.23 g/mol.

Is N-Hydroxythalidomide hazardous?

No GHS hazard classification for N-Hydroxythalidomide is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of N-Hydroxythalidomide?

N-Hydroxythalidomide is usually classified under HS code 292800 (Organic derivatives of hydrazine or of hydroxylamine). This is indicative, confirm it with your customs broker before shipping.

Where can I buy N-Hydroxythalidomide?

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What is the price of N-Hydroxythalidomide?

Suppliers quote N-Hydroxythalidomide on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle N-Hydroxythalidomide

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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